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Luminescence of Ce3+ and Li+ co-doped MgO synthesized using solid-state reaction method
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms ( IF 1.4 ) Pub Date : 2021-08-04 , DOI: 10.1016/j.nimb.2021.07.012
V. Guckan 1 , S.W. Bokhari 2 , V. Altunal 1 , A. Ozdemir 3 , W. Gao 2 , Z. Yegingil 1
Affiliation  

MgO:Ce3+,Li+ was synthesized by the solid-state reaction (SSR) method and its luminescence properties were investigated. The X-ray diffraction (XRD) patterns and scanning electron microscopy (SEM) images were used for the structure analysis. The luminescence properties were studied using thermoluminescence (TL), photoluminescence (PL), and radioluminescence (RL) techniques. The step annealing experiment was conducted to find the preheating temperature. The dose–response features as a function of β-ray exposure extended from 0.2 Gy to 2 kGy were investigated. The kinetic parameters such as the activation energy (Ea), frequency factors, and order of kinetics of MgO:Ce3+,Li+ were found using the computerized glow curve deconvolution (CGCD), variable heating rate (VHR) methods, and Tm-Tstop method in combination with the Initial Rise (IR) method. The experimental results of the TL, PL, and RL analyses can serve for a better understanding of the luminescent mechanism in Ce3+ and Li+ activated MgO for the potential use of designing phosphor as a dosimeter and optical ceramic material.



中文翻译:

固态反应法合成的 Ce3+ 和 Li+ 共掺杂 MgO 的发光

采用固相反应(SSR)法合成了MgO:Ce 3+ ,Li +并研究了其发光性能。X射线衍射(XRD)图案和扫描电子显微镜(SEM)图像用于结构分析。使用热致发光 (TL)、光致发光 (PL) 和辐射发光 (RL) 技术研究了发光特性。进行分步退火实验以确定预热温度。研究了作为 β 射线照射从 0.2 Gy 扩展到 2 kGy 的函数的剂量反应特征。MgO:Ce 3+ ,Li +的活化能 (E a )、频率因子和动力学顺序等动力学参数使用计算机化辉光曲线解卷积 (CGCD)、可变加热速率 (VHR) 方法和 T m -T停止方法结合初始上升 (IR) 方法发现。TL、PL 和 RL 分析的实验结果有助于更好地了解 Ce 3+和 Li +活化的 MgO的发光机制,从而有可能将荧光粉设计为剂量计和光学陶瓷材料。

更新日期:2021-08-04
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